Bump protobuf-java from 3.21.4 to 3.21.5

Bumps protobuf-java from 3.21.4 to 3.21.5.

Commits

• ab84034 Update changelog
• a44b4ae Updating version.json and repo version numbers to: 21.5
• 3294de8 Merge pull request #10376 from deannagarcia/21.x
• 4819eed Update UPB version
• ea0c6fe Merge pull request #10362 from haberman/cherry-pick-php-oneof-descriptor
• 23097c4 Merge pull request #10361 from haberman/cherry-pick-php-nested
• 005f6d1 Merge pull request #10356 from haberman/php-containing-oneof
• d8f882b fix: fix PHP readonly legacy files for nested messages
• de48e9d Merge pull request #10317 from protocolbuffers/21.x-202207262015
• 735e1ef Update version.json to: 21.5-dev
• Additional commits viewable in compare view